2015-04-11 07:44:37 +08:00
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/* ioapic.h - public IOAPIC APIs */
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/*
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* Copyright (c) 2012-2015 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __INCioapich
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#define __INCioapich
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef CONFIG_IOAPIC
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/*
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* Redirection table entry bits: lower 32 bit
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* Used as flags argument in ioapic_irq_set
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*/
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#define IOAPIC_INT_MASK 0x00010000
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#define IOAPIC_TRIGGER_MASK 0x00008000
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#define IOAPIC_LEVEL 0x00008000
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#define IOAPIC_EDGE 0x00000000
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#define IOAPIC_REMOTE 0x00004000
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#define IOAPIC_LOW 0x00002000
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#define IOAPIC_HIGH 0x00000000
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#define IOAPIC_LOGICAL 0x00000800
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#define IOAPIC_PHYSICAL 0x00000000
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#define IOAPIC_FIXED 0x00000000
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#define IOAPIC_LOWEST 0x00000100
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#define IOAPIC_SMI 0x00000200
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#define IOAPIC_NMI 0x00000400
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#define IOAPIC_INIT 0x00000500
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#define IOAPIC_EXTINT 0x00000700
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#ifdef _ASMLANGUAGE
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2015-06-02 02:14:31 +08:00
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GTEXT(_ioapic_eoi)
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.macro ioapic_mkstub device isr
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GTEXT(_\()\device\()_\()\isr\()_stub)
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SECTION_FUNC(TEXT, _\()\device\()_\()\isr\()_stub)
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call _IntEnt /* Inform kernel interrupt has begun */
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pushl $0 /* Push dummy parameter */
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call \isr /* Call actual interrupt handler */
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call _ioapic_eoi /* Inform ioapic interrupt is done */
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addl $4, %esp /* Clean-up stack from push above */
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jmp _IntExit /* Inform kernel interrupt is done */
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.endm
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2015-04-11 07:44:37 +08:00
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#else /* _ASMLANGUAGE */
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void _ioapic_init(void);
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void _ioapic_eoi(unsigned int irq);
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void *_ioapic_eoi_get(unsigned int irq, char *argRequired, void **arg);
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void _ioapic_irq_enable(unsigned int irq);
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void _ioapic_irq_disable(unsigned int irq);
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void _ioapic_int_vec_set(unsigned int irq, unsigned int vector);
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void _ioapic_irq_set(unsigned int irq, unsigned int vector, uint32_t flags);
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#endif /* _ASMLANGUAGE */
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#endif /* CONFIG_IOAPIC */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCioapich */
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